Allow users to disable bindep feature via an environment variable (#106)

Author: ssbarnea

README.md

@@ -53,3 +53,6 @@ This plugin will add the following list of bindep profiles:
 
 This should allow developers to modify their `bindep.txt` file to include
 system dependencies specific to a single tox environment if they wish.
+
+To disable bindep feature, you can define `TOX_EXTRA_BINDEP=0` in your
+environment.

src/tox_extra/hooks.py

@@ -67,7 +67,8 @@ def tox_on_install(tox_env: ToxEnv, arguments: Any, section: str, of_type: str)
             *tox_env.name.split("-"),
         ]
     )
-    check_bindep(path=pathlib.Path.cwd(), profiles=profiles)
+    if os.environ.get("TOX_EXTRA_BINDEP", "1") != "0":
+        check_bindep(path=pathlib.Path.cwd(), profiles=profiles)
 
 
 @impl